Our Renishaw inVia Raman confocal microscope can be used for precise depth profiling and compositional analysis of samples and small objects. It is equipped with a Leica DM2700 optical microscope and two excitation lasers (785 and 532 nm). The system operates both at normal and high confocality modes, allowing for the characterisation of the chemical composition of the materials, chemical mapping, and detailed profiling of transparent and semitransparent layers.

Spectra are recorded over an extended range of 200–3600 cm⁻¹ with a grating of 1200 or 1800 lines/mm according to the laser line used, and a thermoelectrically cooled CCD detector, offering a spectral resolution of 1 cm⁻¹ per pixel (functional resolution of 3 cm⁻¹). To enhance spatial resolution, we can use different objectives: 5×, 20×, 50×, and 100×.